I also have a Dell Optiplex 760 (core2duo, 8GB of ram) that I use a second host when I need to test High availability or vmotion stuff (moving a vm from one host to another)

The Dell is overkill, but I got a good discount on it and could not say no to it.
The storage server is overkill as well for storage but it was fairly inexpensive to build and the entire machine uses 40 watts of power at idle, it costs nothing to run it.

I have a couple of boxes running debian as host OS and various distros and xp as guests. Main (and the one online 24/7) is E350 powered, 8 gb ram and hosts my freenas on it's own HDD of 2 TB, 2 Tor VPSes on 2 connections, an XP for the cameras and internet radio receiver, a VPS for hosting my friends with EHCP, a pfSense for QoS and failover + TS3 server with max 200 slots on Debian too. The main HDD is 1 TB.
The other box is similar, only 4 gb ram, tho, and running Xen as host and SME Servers as guests and is not on permanently, only when I need to test stuff since I use SME for my work and my friends which want servers SOHO mostly. HDD for VMs is 1x400 gb and the OS on a laptop HDD of 80 gb.
Using VMWare Server on main and Xen the secondary because that is the setup at work, but I did prefer VMWare Server before, too bad it is discontinued now.
E350/E450 are great for my needs, mostly BW and space, not CPU intensive and they are draining little power, have passive cooling, can survive long blackouts on a small UPS together with the media converters and a couple of switches+DD-WRT router, very stable, running for months at a time, only interrupted so far by very long blackouts (welcome to Romania where power is less reliable than the Internet). If you want a limited home server that wont drain too much power and can still host a lot of VPSes, Atom 510/525, E350/E450 integrated on the mobo with passive cooling are doing a fine job for traffic, routing, forums, TS3, etc. I/O is a pain tho, I use Samsung HDDs for their low thermal output but they are not known for great speed, even on SATA3 and a RAID/SAS solution is deffinitelly overkill for my budget and power restrictions.
M
P.S. 1
ISPs are RCS-RDS and Romtelecom, one is 10-20 Mbps up and down (advertised as 100, but rarely reaches 50) the other is 30 down, 6 up but is really delivering 90% of that. Both cost about 10 EUR in average with second being a bit more.
P.S. 2 I may take a pic if I remember :)

Extremist conservative user, I wish to preserve human and civil rights, free speech, freedom of the press and worship, rule of law, democracy, peace and prosperity, social mobility, etc. Now you can draw your guns.

Box takes a ridiculous amount of power idle (~115 watts) so I'll probably retire it at some point in summer in favour of something less expensive to run. All it really does is samba, µTorrent, svn, ircd, JIRA, and a bit of http.

I use the box for, 1 Windows Home Server runs in KVM, the rest is used for media storage, as well as fetching copies of backups for Hostigation web/solus/cacti/centreon data. No customer data is backed up to my house.

"We just got rid of a bunch of 2TB Samsungs because the IO was horrible in RAID50 no matter what RAID controller we used. :("
IO on Samsungs is really horrible, but they are also low key in noise, heat and pretty reliable. At least the low end versions of different brands I tried so far. It ultimately depends on what you use them for, in case of back-ups and media storage, well, that works.
M

Extremist conservative user, I wish to preserve human and civil rights, free speech, freedom of the press and worship, rule of law, democracy, peace and prosperity, social mobility, etc. Now you can draw your guns.

One pc used as scratch NAS (was a development machine with web server/svn/git repositories)

Disk: 2x500GB sata in software raid
ISP: myself (I'm the CTO there) with a static /29
RAM: 6GB
Processor: AMD 64 X2
Computer: homemade
OS: unmanageable linux (it was debian etch one time, but it was used for all kind of custom library compilation and development so it was left waiting for a reinstall, now I and my wife bet on the day it will die)

Its a mix of 2 HP, 1 Dell, 1 IBM, 3 custom made ones. All of them have 4GB RAM, 2 x250GB Hard Disk, RAID 1, Quad Core processors.
The reason i have so many servers is that some of them are for testing OpenVZ patches, any new services i may offer in the future so all 7 of them are being used for something.

OMG, that is some hefty internet bill... I remember the times I had a leased line with 4K i was sharing with the neighbourhood and which costed 3 times more than 512/256 in Sweden...
Probably such situations spawned the current huge competition that allows for a real synchronous 10-20 mb for 10 euro (advertised as 100 mb tho...)
I live in an old (historic) part of the town and I can still get 10-15 providers if I search well at prices ranging from 10 to 75 Euro for a 100 mb line, with different guarantees and real speeds, of course...
http://www.netindex.com/download/allcountries/ That doesnt show the price, tho...

"I have a hp proliant dl380 g3 but I hardly run it because its sooooo noisy and draws about 500w power"
I really dont understand ppl that have so many energy hungry machines at home, one main reason for which I use VPSes is that the energy bill is higher than most LEBs cost...
M

Extremist conservative user, I wish to preserve human and civil rights, free speech, freedom of the press and worship, rule of law, democracy, peace and prosperity, social mobility, etc. Now you can draw your guns.

Just a secure way to get into my home network, from work. It runs ddclient, denyhosts. Also keep an screen-irssi running to chat with Atari 8-bit folks on irc. It also runs an atari800 emulator in ncurses mode.

Cool, one day I will put up an old project of mine, Z80 hosting. Dont laugh, I am serious.
M

Extremist conservative user, I wish to preserve human and civil rights, free speech, freedom of the press and worship, rule of law, democracy, peace and prosperity, social mobility, etc. Now you can draw your guns.